Latest Toxicity Stories

Nanotechnology Detected Mercury In Water And Fish
2012-09-13 08:47:12

Inexpensive, super-sensitive device detects even low levels of toxic metals in water, fish When mercury is dumped into rivers and lakes, the toxic heavy metal can end up in the fish we eat and the water we drink. To help protect consumers from the diseases and conditions associated with mercury, researchers at Northwestern University in collaboration with colleagues at Ecole Polytechnique Fédérale de Lausanne (EPFL) in Switzerland, have developed a nanoparticle...

2012-08-16 00:40:36

Though no systemic studies have been performed, it is generally believed that genes are the most sensitive toxicological endpoints for pollutants, and are thus desirable early warning indicators of environmental risks. A recent study, however, unexpectedly found that the sensitivity of the gene expression effect for cadmium was significantly lower than the individual level chronic toxicity indicators (such as the no observed effect concentration, NOEC). Therefore, the gene expression effect...

2012-06-16 01:04:52

A new approach to drug design, pioneered by a group of researchers at the University of California, San Francisco (UCSF) and Mt. Sinai, New York, promises to help identify future drugs to fight cancer and other diseases that will be more effective and have fewer side effects. Rather than seeking to find magic bullets – chemicals that specifically attack one gene or protein involved in one particular part of a disease process – the new approach looks to find “magic...

2012-05-14 22:25:38

Biosensor warns of toxicity in real time, says TAU researcher From man-made toxic chemicals such as industrial by-products to poisons that occur naturally, a water or food supply can be easily contaminated. And for every level of toxic material ingested, there is some level of bodily response, ranging from minor illness to painful certain death. Biosensors have long been used to safeguard against exposure to toxic chemicals. Food tasters employed by the ancients acted as early versions...

2011-12-21 19:14:09

College of Engineering professor develops novel approach to analyze potential health hazards associated with pesticides and toxic chemicals Approximately 80,000 industrial chemicals are in use and about 700 new chemicals are introduced to commerce each year in the United States, according to the U.S. Government Accountability Office. To assess human health risks from exposure to harmful substances, James Englehardt, professor in the College of Engineering at the University of Miami, is...

2011-12-15 16:58:18

The cancer-causing potential of fetal exposure to carcinogens can vary substantially, a recent study suggests, causing different types of problems much later in life depending on the stage of pregnancy when the fetus is exposed. The research sheds further light on the way in which toxic damage early in life can later manifest themselves as cancer, due to “epigenetic” changes in cells. It was done by scientists in the Linus Pauling Institute at Oregon State University, and other...

2011-09-28 13:41:19

The search for a rapid, non-invasive way to determine whether people have been exposed to potentially toxic substances in their workplaces, homes and elsewhere in the environment has led scientists to a technology that literally takes a person's breath away. Their report identifying exhaled breath as an ideal indicator of such exposure appears in ACS' Environmental Science & Technology. Andrea M. Dietrich, Masoud Agah, and their students Heather Vereb and Bassam Alfeeli explain that...

Word of the Day
  • A Roman unit of weight, 1⁄1728 of a pound.
  • A weight of four grains used in weighing gold and precious stones; a carat.
  • In anatomy, a formation suggesting a husk or pod.
  • The lowest unit in the Roman coinage, the twenty-fourth part of a solidus.
  • A coin of base silver of the Gothic and Lombard kings of Italy.
'Siliqua' comes from a Latin word meaning 'a pod.'